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Possible superfluidity of molecular hydrogen in a two-dimensional crystal phase of sodium

Autor
Cazorla, C.; Boronat, J.
Tipus d'activitat
Article en revista
Revista
Physical review B: condensed matter and materials physics
Data de publicació
2013-12-03
Volum
88
Número
22
Pàgina inicial
224501-1
Pàgina final
224501-6
DOI
https://doi.org/10.1103/PhysRevB.88.224501 Obrir en finestra nova
Projecte finançador
Estudio fundamental y diseño computacional de óxidos multifuncionales nanoestructurados (MAT2010-18113)
Repositori
http://hdl.handle.net/2117/21500 Obrir en finestra nova
URL
http://prb.aps.org/abstract/PRB/v88/i22/e224501 Obrir en finestra nova
Resum
We theoretically investigate the ground-state properties of a molecular para-hydrogen (p-H 2 ) film in which crystallization is energetically frustrated by embedding sodium (Na) atoms periodically distributed in a triangular lattice. In order to fully deal with the quantum nature of p-H 2 molecules, we employ the diffusion Monte Carlo method and realistic semiempirical pairwise potentials describing the interactions between H 2 -H 2 and Na-H 2 species. In particular, we calculate the ene...
Citació
Cazorla, C.; Boronat, J. Possible superfluidity of molecular hydrogen in a two-dimensional crystal phase of sodium. "Physical review B: condensed matter and materials physics", 03 Desembre 2013, vol. 88, núm. 22, p. 224501-1-224501-6.
Paraules clau
Molecular hydrogen, crystal phase of sodium, two-dimensional
Grup de recerca
SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity

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